function load() {
    var tab = document.getElementById("tbl");
    var rows = tab.rows;
    console.log(rows.length); //获取表格的行数

    for (var i = 0; i < rows.length; i++) { //遍历表格的行
        for (var j = 0; j < rows[i].cells.length; j++) { //遍历每行的列
            console.log("第" + (i + 1) + "行，第" + (j + 1) + "列的值是:" + rows[i].cells[j].innerHTML);
        }
    }
}
load(); //函数调用
$(".goBack").click(function() {
    window.location.href = "/login";
})